Smoke from megafires puts orchard trees at risk

Growing Air Leak in Russian Segment Now Deemed Greatest ISS Risk, Report Reveals | NASA and Roscosmos have elevated the air leak to the highest level of risk, but they can't agree on when it becomes unmanageable.

Presence of subclinical atherosclerosis is marker of mortality and its progression increases risk of death

New laser-based headset can measure blood flow, assess risk of stroke